Gas-scrubber.



R. MAGLAURIN.

GAS SCRUBBER.-

APPL'ICATION FlL-ED was. 1915.

Patente et 26, 1915.

a c/ L Mentor: by W ROBERT MACLAURIN, 0F STIRLING, SCOTLAND GAS-SCRUBBER.

. Specification of Letters Patent.

Patcnted (hat. 26, 110115.

Abp1ication filed J'u1y a, 1915. Seria'l N0. 37,804.

T0 (1ZZ urh0m it may conccrn Beit known that I, ROBERT'M ACLAURIN,

a subject of the Ring of Great Britain and Ireland, residing at Sti1ling, in the county of Stirling, Scotland, have invented ce1tain neu and useful Improvements in Gas-Scrubbers, of which th e following is a specification. 1

'1his invention relates t0 an apparatus for the scrubl ing of gases containing constituents soluble in unter o1 other fluids or condensable or capable 0f being deposited therein.

As is already well known, the elficiency of such a device depends upon the degree of intimate contact between the gases treated and the scrubbing liquid, and it is also W811 known that a Violent impact of the gases and liquids against proper barriers materially assists in stripping ehe gases of their undesirable contents. Ceibain dilliculties arise in obtaining a fine spray of liquid impacting at a high velocity,-because rapidly 1noving blades, dis'ks o1 cones all send ofl liquids practicaally in one or two planes 01 sheets under the influence of the centrifugal forces present, and therefoie in order to insure efliciency, a great multiplication of parts is required.

The purposc of my invention is to oval?- come the difliculties stated by discharging the liquids from central positions outwardly within the vessel in Which the operations take place in a peculiar manner and by the peculiar mechanism hereinafter described.

In the dravvings, Figure 1 is a vertical central section through an apparatus embodying my invention; Fig. 2 is an enlarged detail of one of the liquid containing Vessels, the same being in section; and Fig. 3 is a diagram illustrating the arrangement of the brushes as they appiaar'when the vessel equipped with them is viewed from the outside.

In the drawings, Fig. 1, there is illustratcd a casing indicated at 10, provided with a bottom 11, an intermediate false bottom or horizontal -partition 12, and a top 13, all made of suitable material, and secured together in any proper manner known y .to engineering practice. Above the top and the bottom, if desired, are arranged bearings indicated respecti vely a1: 14 and 15,1n which there is arranged to be 'rotated a vertical shaft 16, receiving its energy from a pulley indicated at.l7 or by any other suitable power transmitting mechanism) from a source of power not shown.

Arranged above the casing is an inlet conduit for the liquid indicated at 18 and an outlet forthe gas indicated at 180, and at the bottorn 0f the casing is an inlet conduit for the gas indicated at 19 and an outlel: for the liquid indicated ab 190.

Arrzinged in vertical succession along the shaft 16 are' vessels indicated at 20, so securcd to the shaft that as it is 'rotated they are each rotated in a horizontal plane. Also arrangcd in vertical succession within the casing are a series of horizontally disposed annular dish shaped plates indicated at 21 which may be provioled with apertures to facilitate the passage of the gases as hereafter described. Each of the vessels 20 is open at the top and provided with a bottom 22 having an upstanding annular flange 28 surrounding a central opening 24 to permit of the passage of ehe vertical shaft 16. The sides of each of these vessels are provided with a series of brushes 25 the arrangement of which is shovvn best in Fig. 3. Bach brush comprises a socket member 26 with projecting bristles indicated ab 27,- the bristles as a whole having a flaring 01 substantially conical shape.

The opcration of the apparatus is as follows. The liquid enters at the top through the conduit 18 and flows down upon one of thc plates 21, and owing to the shape of such plate flows toward the center thereof and into the uppermost vessel 20 of the series. It will be understood that this vessel is being rapidly revolve'd by the rotation of the central shaft. Falling into the vessel, the liquid is thrown toward its sides by the centrifugal force of its rotation, and contacting with the inner ends of the brush members, flows along' such brush meinbers and is thrown in afine spray therefrom in every dirction, owing -to the flaring shape of thebrushes and their arrangement around the vessel. The particles or drops of liquid are thus caused violently to impact aga1nst the shell or Wall of the apparatus, and fall by gravity toward the next plate 21 of the series and flowing toward its Center fall into the second vcssel. The liquid collected therein is then thrown out and dispcrsed therefrm and impacted against the Walls of the apparatus as before. This operation is repeated with each platze and vessel until the bottom of the apparatus is reached where the liq'uid is drawn ofl' by any suitable means in any suitable way, as the out1et 190. In the meantime, the gas to be scrubbed has entered the apparatus ab the bottom, und rises up through the apparatus and comes into contact with the first of the revolving vessels a.t the bottom of the series, and striking the brushes und. revolving parts, receives a swirling motion, and is thrown against the sides, thus being brought into most intimate contact With the washing liquid, as it viplently impacts upon the sides ofthe contai'hing vessel. The ascending column of gas meets euch vesse1 and its projecting brushes in turn and is thereby given a long travel through a mist 0f liquid and by the time' it has reached the top of the apparatus has parted With its undesirable constituents.

It is obvious that the number of vessels und the dimensions of the appartus can be varied to suit the exigencies of the Situation,

und depend upon the quantity of deleterious materia1s t0 be removed from the gas treat v ed, the nature of the scrubbing fluid, und other conditions Which are Wel1 known t0 those skilled in the art. It is -also obvious that the particular shape of the vessels employed, their dimensions, the nu1nber and size of the collection plntes, the material, number and size of t-he brushes und othe1 elements of the construction of the apparatus'may be vziried without departing from the principle 0f the invention.

I claim:

A gas scrubber comprising a vertical cas ing, with dividing partitions, a series of small vessels disposed in vertical succession therein, and adapted to be rapidly horizon tally rotated in unison, each vessel being provided with brushes having shorl; flnring bristles communicating With the interior 0f the vessels, and means for supplying a scrubbing liquid at the top of the cnsing, and gas t0 be scrubbed at the bottom 0f the casing.

In testimony whereof I aflix 1ny signature. 

